Safe Water Programme – Nigeria – VPA 30

Audit Analysis

The Safe Water Programme in Nigeria has a VVB-confirmed investment additionality test and verified usage rates that exceed assumptions, but is undermined by an unaddressed leakage justification, a project-specific baseline with no stated reassessment, the absence of any buffer pool, and a large set of corrective actions (24 items) flagged by the VVB. Significant contradictions between the 2023 and 2024 verification reports—particularly in the FNRB value and method—raise data-reliability concerns that temper confidence in the claimed emission reductions.

Project Description

Red Flags

• ⚠Leakage deduction is 0% and the verification report (2024-07-25) records the justification as 'not addressed', while the monitoring report (2024-07-23) claims it is 'deemed negligible'—the higher-priority VVB document does not support the negligible claim.
• ⚠FNRB value changed from 0.96 (local field measurement, 2023 report) to 82.3 (national default, 2024 report), a method and magnitude shift that is not explained in the extracted record.
• ⚠24 corrective actions were required by the VVB, including sampling-design non-compliance, typographical errors referencing the wrong country (Kenya instead of Nigeria), and missing deviation-request documentation.
• ⚠total_err_exante_lifetime is not available in the extracted record, preventing a reliable pro-rata comparison of verified versus expected reductions.

Credit Vintages